Page 360 - (DK) The Ultimate Visual Dictionary 2nd Ed.

RAIL AND ROAD

Bicycle anatomy Saddle

THE BICYCLE IS A TWO-WHEELED, light-weight machine,
which is propelled by human power. It is efficient, cheap, easily
Seat post
manufactured, and one of the world’s most popular forms of
transportation. The first pedal-driven bicycle was built
in Scotland in 1839. Since then the basic design—of a frame, Seat post Cable
quick-release guide
wheels, brakes, handlebars, and saddle—has been gradually bolt
improved, with the addition of a chain, gear system, and
Straddle
pneumatic tires (tires inflated with air). The recent invention
wire
of the mountain bike (all-terrain bike) has been an important
development. With its strong, rugged frame, wide tires, and Seat
tube
21 gears, a mountain bike enables riders to reach rough and
hilly areas that were previously inaccessible to cyclists.
REAR WHEEL Rear cantilever Seat
Tire
brake stay
Spoke
Rim
Hub
Front
derailleur
Rear
dropouts
Rear hub
quick-release Bottom
spindle
bracket shell
Bottom bracket
Crank bolt Washer axle
13-tooth
17-tooth sprocket
sprocket Adjustable cup
Fixed cup
Bottom bracket Caged
sleeve ball bearings
Lock
washer Freewheel Lock ring
locknut

Jockey Chain Lock
wheel washer

Rear
derailleur
23-tooth
sprocket
Derailleur 46-tooth
cage plate chain ring
Jockey
Sprocket wheel Toe clip
spacer GEAR SYSTEM
30-tooth
sprocket
Spoke guard
Spider
FREEWHEEL SPROCKETS Toe strap Pedal

358